Less than one month before he was scheduled to make his return to the UFC after a three-year absence, lightweight Dan Lauzon (12-2 MMA, 0-1 UFC) has been forced to withdraw from his UFC 103 bout with Rafaello Oliveira (9-1 MMA, 0-0 UFC) after suffering a back injury in training.

Lauzon confirmed the injury on his Twitter account, though the UFC has yet to make an official announcement.